The problem with a vehicle that old is it would have to be a signature loan with a higher APR versus a vehicle loan with a low APR. I typically go through my Local Credit Union and I'm pretty sure their cut off on a loan is 10 year old vehicles.
Old retired finance mgr. advice here. A lower amount of a loan with a slightly high finance rate is always cheaper on the length of the loan than a much higher loan amount with a lower finance rate. Just simple math.
A good deal on a older truck with low mileage is always a lower cost in the long run.
For example of my 2001 Toyota Tundra I bought 6 months ago. 16 years old with 52,000 miles for $6000. Had to invest in $650 tires and oil change. I did pay cash for it but even a higher finance rate on that low amount is still much better than a $25-35,000 truck loan at a lower or even 0% interest rate. The final total cost is what counts.
Buy a much lower price truck to drive and take the difference saved and put it into a untouchable savings account. In 10-15 yrs you will be able to buy your dream hunting property with free money not spent on dream trucks. Only thing lost is that warm and fuzzy feeling over the years.
Been there and done it. I now own my dream hunting property for myself and family. Plus it will be passed on to my loved ones when I don't need it anymore.
Over the years I was a Consumer Finance Office Manager I seen 1000's of customers just piss away millions of dollars on warm and fuzzy feelings. I learnt from that in my way of living.
I'm out of this and hoped I passed on some good advise.
Carry on.